Navigation Links
Salmon's own diet sure to affect yours

A STUDY by American scientists has sparked new fears over the safety of Scottish farmed salmon by warning people that they should eat no more than two portions a year.//

Researchers at the University at Albany, part of New York State University, concluded that the health benefits of eating Scottish fish are outweighed by risks caused by pollutants.

Where the salmon comes from and what the fish is fed determine whether the health risks will outweigh the benefits, according to the study published in the Journal of Nutrition recently.

Researchers found that the contaminant levels in farmed salmon from certain regions of the world increased the risk of cancer enough to outweigh its coronary health benefits. The toxin levels were so high in some farmed salmon from Europe that people could not afford to eat more than a single serving every five months, they said.

David Carpenter, lead author of the study and director of the Institute for Health and the Environment at the state University at Albany's School of Public Health says although the toxin levels in wild salmon weren't high enough to exceed the health benefits, the same was not true for farmed salmon, which are raised on a diet of fish oil.

The level of contaminants in fish oil - often derived from local fish - vary depending on the region of the world.

Farmed salmon from South America had the lowest level of pollutants followed by farmed salmon from North America. Salmon from Europe had the highest level of pollutants, according to the study. "We think it's because that area's been industrialized much longer," Carpenter said.

After other studies indicated that fish oil increases the levels of toxins in farm-raised salmon, some fish farmers in recent years have switched to vegetable oil pellets. But a study last year found the heart-health benefits from fish like salmon were weakened when they were fed vegetable oil instead of fish o il.

To determine whether the heart-health benefits of farmed salmon were worth the risk, researchers used advisories developed by the U.S. Environmental Protection Agency for cancer effects and the fish consumption advisory issued by the American Heart Association.

"In farmed salmon, the cancer risk dominated the health benefits," Carpenter said. "We're not opposed to farmed salmon, just how it's farmed. The industry can reduce the level of toxins by changing how they feed the salmon'.

That's not a call for people to shun farmed salmon, however. Salmon and other fatty fishes like mackerel and sardines are rich in omega-3 fatty acids, the healthy fat that scientists say raises the "good" HDL cholesterol and lowers the "bad" triglycerides. The AHA recommends people eat fish - particularly fatty fishes - at least twice a week.

Recent studies from Scotland have reported that feeding salmon vegetable oils except in the final stages of farming resulted in salmon with significantly lower levels of contaminants but with most of the omega-3 fatty acids obtained from the standard diet.

'The benefits exceed the risks for wild Pacific salmon, but the risks exceed the benefits for farmed Atlantic salmon as a group. The risks are greatest in Scotland, the Faroes and Norway,' says the report.

'Omega-3 fatty acids can be consumed in many forms of seafood, including wild salmon, farm-raised salmon from Chile (which were found to contain the lowest concentrations of pollutants in farm-raised populations), and in some oils, nuts and vegetables.'


'"/>




Related medicine news :

1. Sexual abuse affect health for a lifetime
2. Air pollution affects the heart
3. Passive smoking affects respiratory system
4. Hypothyroidism can affect babies
5. Particulate matter affects lung development
6. Anxiety likely to affect the foetus
7. Fatty deposits affect the stomach too
8. Tamoxifen does not adversely affect the brain
9. How trees affect sun exposure
10. Attitude affects lifes quality
11. Brain damage affects artistic skill
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/22/2017)... ... 22, 2017 , ... A cylindrical “pipeline” used for treating ... reach ones, according to the results of a clinical trial announced Wednesday. , ... Ricardo A. Hanel, MD, PhD, neurovascular surgeon with Baptist Health and Lyerly Neurosurgery ...
(Date:2/22/2017)... ... 22, 2017 , ... Using the power of the internet, IdrisArkette.com has managed ... a period of just 24 months, thousands of individuals interested in a medical procedure ... , “The internet is not getting quieter. In fact it’s becoming noisier by the ...
(Date:2/22/2017)... (PRWEB) , ... February 22, 2017 , ... ... of issues related to spine practices, is featuring Michigan neurosurgeon Jay Jagannathan, M.D., ... as one of a small number of neurosurgeons in Michigan performing minimally invasive ...
(Date:2/22/2017)... ... February 22, 2017 , ... Forty-five ... of those report that family members or friends have also commented about their ... hearing loss wear hearing aids. One reason, suggested by 89 percent of American ...
(Date:2/22/2017)... ... ... Social media marketing is transitioning from a singular person activity to a ... into this insight and more in its latest episode of its Brains Over Brawn ... with social media strategist and partner of the digital firm Med|Ed Digital Jessica Columbo. ...
Breaking Medicine News(10 mins):
(Date:2/22/2017)... Feb. 22, 2017 The Senior Care Pharmacy ... Senate and House of Representatives that will curtail the ... (PBMs) -- from extracting retroactive direct and indirect remuneration ... (LTC) pharmacies and the Medicare program. S. ... (R-WV) and Jon Tester (D-MT), and House ...
(Date:2/22/2017)... DUBLIN , Feb 22, 2017 Research ... Devices Market Analysis & Trends - Industry Forecast to 2025" report ... The ... of around 5.2% over the next decade to reach approximately $2.1 billion ... estimates and forecasts for all the given segments on global as well ...
(Date:2/22/2017)... 2017 Henry Schein Medical today announced ... with Rijuven, which develops innovative digital medical devices, ... practitioners. CardioSleeve is a stethoscope ... sound signals, transmits real-time data to any smartphone ... to help physicians provide diagnostic interpretation of a ...
Breaking Medicine Technology: